Question

hi guys,

Show transcribed image textAn EV employs a 50 hp 460 V 60 Hz 4 pole SQCIM. A V/Hz control scheme is used to control the speed of the motor. Compute the stator voltage and frequency, if the motor supplies 400 Nm at 1000 rpm. It is given that Rs = 0.02, r = 0.025, Xs = 0.3, = 0.28, and XM = 5 Ohm. What should be the stator frequency and voltage if while running at the same speed the motor is to enter in the regenerative braking mode delivering a 50 Nm counter torque? Draw the power flow diagram during the regenerative braking. How much mechanical power is converted to electrical power then? What are the gap and slip powers?